Circuit board within a display box



FIG. 1 is a perspective view of a circuit board within a display box, showing my new design;

FIG. 2 is a top plan view thereof, the bottom plan view being a mirror image thereof;

FIG. 3 is a left side elevation view thereof,

FIG. 4 is a right side elevation view thereof,

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a front elevational view thereof.

The broken line environmental structure is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a circuit board within a display box, as shown and described. 